Only some small stretches of the former canal remain on the premises of the Rajaphat Institute, South of Rojana Rd. The premises of the Sam Chao Phraya Museumshow also a stretch of water, but here the old canal has been probably altered.

Khlong Chakrai Noi had its exit in the loop of the old Lopburi River around the city, a river which became in the 19th century the Chao Phraya River due to northern deviation works in the 19th century (See the essay: Ayutthaya's Everchanging Waterways).

At the mouth of the canal was one of the eleven water gates of the city; a water gate called Pratu Chakrai Noi. This water gate was very close to a famous land gate called Pratu Chai or the "Gate of Victory"; a gate where the most important guests were received with ceremony. The largest sub-district of Ayutthaya at present still bears the name Pratu Chai.

On the eastern bank of the canal stood once a fortress called Pom Pratu Chakrai Noi, which foundations were still visible in Phraya Boran Rachathanin's time. On the opposite site of the "Mae Nam" was the mouth of Khlong Khu Cham, an important canal south of Ayutthaya.

The canal was crossed by a road on at least one place in the vicinity of Wat Borom Phuttharam. On this crossing stood the Sing Bridge.

The meaning of the word "chakrai" (ฉะไกร) is unknown to the author. It could be a corruption of the word "ฉัตร", a many tiered (royal) umbrella and the word "ไกร" meaning powerful or mighty. The canal could as thus have received the name "Little Canal of the Mighty Royal Umbrella". The latter remains of course a pure guess.